SST: Rename SST(Secure STorage) to PS(Protected Storage)

This patches renames SST(Secure STorage) to
PS(Protected Storage) for files, folders and any contents
in files to align with the PSA Storage API spec.

Change-Id: Icf991f59512875780c159f22737b521b3b2d4924
Signed-off-by: Kevin Peng <kevin.peng@arm.com>
diff --git a/interface/include/tfm_veneers.h b/interface/include/tfm_veneers.h
index d2d9207..c66006a 100644
--- a/interface/include/tfm_veneers.h
+++ b/interface/include/tfm_veneers.h
@@ -16,14 +16,14 @@
 extern "C" {
 #endif
 
-#ifdef TFM_PARTITION_SECURE_STORAGE
-/******** TFM_SP_STORAGE ********/
-psa_status_t tfm_tfm_sst_set_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
-psa_status_t tfm_tfm_sst_get_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
-psa_status_t tfm_tfm_sst_get_info_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
-psa_status_t tfm_tfm_sst_remove_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
-psa_status_t tfm_tfm_sst_get_support_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
-#endif /* TFM_PARTITION_SECURE_STORAGE */
+#ifdef TFM_PARTITION_PROTECTED_STORAGE
+/******** TFM_SP_PS ********/
+psa_status_t tfm_tfm_ps_set_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
+psa_status_t tfm_tfm_ps_get_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
+psa_status_t tfm_tfm_ps_get_info_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
+psa_status_t tfm_tfm_ps_remove_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
+psa_status_t tfm_tfm_ps_get_support_req_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
+#endif /* TFM_PARTITION_PROTECTED_STORAGE */
 
 #ifdef TFM_PARTITION_INTERNAL_TRUSTED_STORAGE
 /******** TFM_SP_ITS ********/
@@ -159,10 +159,10 @@
 psa_status_t tfm_spm_irq_test_1_execute_test_scenario_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
 #endif /* TFM_ENABLE_IRQ_TEST */
 
-#ifdef TFM_PARTITION_TEST_SST
-/******** TFM_SP_SST_TEST ********/
-psa_status_t tfm_tfm_sst_test_prepare_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
-#endif /* TFM_PARTITION_TEST_SST */
+#ifdef TFM_PARTITION_TEST_PS
+/******** TFM_SP_PS_TEST ********/
+psa_status_t tfm_tfm_ps_test_prepare_veneer(psa_invec *in_vec, size_t in_len, psa_outvec *out_vec, size_t out_len);
+#endif /* TFM_PARTITION_TEST_PS */
 
 #ifdef TFM_PARTITION_TEST_SECURE_SERVICES
 /******** TFM_SP_SECURE_CLIENT_2 ********/